Papagolf: From some course notes referring to the stabiliser ‘end plates’ ….
They are attached to the ends of the stabilizer by means of angle brackets and are offset 5 degrees to the left of centreline to provide a 0 degree angle of incidence to the air flow over the tailboom to improve dihedral (roll) stability of the aircraft in forward flight
..... I presume, as you say, that it stabilises the airflow to assist the vertical fin (which has a 5˝ deg offset to the right of centreline) in doing its ‘thing’.
I have not seen any mention of why the stabiliser is mounted slightly further to the left side of the boom. But could have something to do with the tailrotor being mounted on the left side or the main rotor wash coming down from that side.
But why doesn’t the 206B have the end plates fitted?
AOTW: What is ‘inflow roll’? I vaguely remember hearing the asymmetric setup of the 205 synch elevator was to assist in stability during autorotation. ( originally thought somebody had stuffed up the installation)
